Photographic camera

Details Photographic camera Photographic camera

1986-12-03

1988-08-30

Gellner, Michael L.

354446, G03B 7099

Patent

active

047680474

ABSTRACT:
A photographic camera having a real focal length photographing mode and two kinds of a first and a second pseudo focal length photographing modes. In the first pseudo focal length photographing mode, the photographic camera is capable of specifying a scope for printing narrower than the scope in the real focal length photographing mode. The photographic camera has a function for selecting either of the real focal length photographing mode and the first and second pseudo focal length photographing modes in order to output a mode signal in accordance with the selected mode, a function for measuring a brightness of an object to output a signal of the measured light in accordance with it, a function for outputting a signal in accordance with a film sensitivity and a function for calculating ane exposure value in accordance with the signals of the mode, measured light and film sensitivity and also for rectifying the aperture to the open side in the second pseudo focal light photographing mode rather than in the first pseudo focal length photographing mode.

REFERENCES:
patent: 3490844 (1970-01-01), Sapp
patent: 4238860 (1981-08-01), Rucker
patent: 4357102 (1982-11-01), Taren et al.
patent: 4583831 (1986-04-01), Harvey
patent: 4639111 (1987-01-01), Harvey
Instruction Manual for the "Canon T80" Photographic Camera.

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